注:本文仅作为查找函数和部分理解使用,希望能给大家带来帮助以下函数均可以使用SELECT NOW()等函数 FROM DUAL;来测试 //其中dual是一个准们用来测试的测试表1.时间日期函数1.1 获取时间的函数重点记忆前三个红色标注的函数,第一个函数返回值如2024-01-02的形式第二个如 15:20:21第三个则是两者追加如: 2024-01-02 15:20:211.2 年月日时分....

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更新时间 2024-06-14 22:18:46

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